Lighting fixture



N A M R E B n s L LIGHTING FIXTURE Filed June 13, 1936 ATTORNEY PatentedOct. 4, 1938 UNITED STATES PATENT. OFFICE LIGrI'I'1"IN(} FIIK'ITURIE.v

Louis Silberman, New York, N. .Y.

Application June 13,

7 Claims.

This invention relates to lighting fixtures and is particularly directedto a lighting fixture suspended from a ceiling, and the like articles.

, An object of this'invention is to provide a lighting fixture of thecharacter described, provided with highly improved means to reflectlight upwardly toward the ceiling, the fixture being so constructed thatsubstantially no shadows are cast on the ceiling while producing a softsubstantially uniform light throughout the room.

A further object of this invention is to provide in a lighting fixtureof the character described, highly improved means for reflecting lightdownn wardly, as well as upwardly toward the ceiling. 5, A still furtherobject of this invention is to provide a neat and durable lightingfixture of the character described, which shall be comparativelyinexpensive to manufacture, easy to assemble, attractive in appearanceand which shall yet be 9 practical and efficient to a high degree.

Other objects of this invention will in part be obvious and in parthereinafter pointed out.

The invention accordingly consists'in the features of construction,combinations of elements,

5; and arrangement of parts which will be exemplified in theconstruction hereinafter described, and of which the scope ofapplication willbe indicated in the following claims.

In the accompanying drawing,,in which is 30 shown one ofthe variouspossible illustrative embodiments of this invention' I Fig. 1 is an,elevational cross-sectional view of a lighting fixture embodying theinvention suspended from the ceiling; v 3% Fig. 2 is abottom plan viewof animproved lighting fixture; V

Fig. 3 is a cross-sectional view taken on line 3 -3 of Fig. 1; s I

Fig. 4 is an enlarged elevational cross-sectional lQ view of a portionof my improved lighting fixture; and v Fig. 5 is a partial enlargedcross-sectional view of the central portion, of the fixture.

Referring now in detail to the drawing, Ill

plated on the outer surface. The member [2 may 60 the member i2 is madeand then bent with said Received on the upper edge 1936, Serial No.84,984

strip into circular shape, the member I3 thereafter being'soldered tothe member [2 for fixing the former to the latter. Soldered or'otherwise fixed to the inner surface of the member l2, ad- W jacent thelower edge thereof, is an annular member of angular cross-section havingan inwardly extendingflange' l6.

Mounted on the flange i6 is a circular plate or disc I! of glass,mirrored on its undersurface Ila. to reflect light upwardly. The plateIT has a central opening 18' for the purpose hereinafter appearing.Contacting the underside of the flange IE and disposed beneath the plateI1 is a plate 20 of glass preferably mirrored on its upper surface 20ato reflect light downwardly, and to cover the undersurface of the upperplate. The plate 28 is clamped to the plate I! in the manner to beexplained hereinafter, and is preferably made of colored glass toproduce highly attractive visual effects. The said plate 2llis likewiseformed with a central opening 2| registering with the 7 opening l8. Anapertured washer 22, having substantially the thickness of the flangeI6, is interposed between the plates IT and 20, the opening of saidwasher registering with the openings l8 and 2| of the plates l1 and 2B.

-Means is provided to clamp the plates l1 and 20 together. To this'end,there is provided a member 23 having a substantially spherical portion24 provided with a downwardly extending stem 25 passing through theopenings l8 and 2|. At the .upper end thereof, the stem 25 has ashoulder 26 contacting the top of the plate IT. The lower end of thestem 25 is screw-threaded to receive a nut 28 screwed thereon forpressing a washer 30 received on said stem against the lower surfaceof-theplate 20.

The spherical portion 24 of the member 23 is furthermore formed with aplurality of horizontal equi-angularly spaced threaded openings 32, intowhich are screwed lamp sockets 33 extending in radial direction. Lamps34 may be screwed to the sockets 33. Although three sockets for the'reception of three lamps are shown in the drawing, it will be understoodthat any suitable number of sockets may be provided. The member 23 alsohas at the top thereof, a vertical screwthreaded opening 35 and anannular shoulder 36 surrounding said opening. Screwed within the opening35 is a pipe 31, the upper end of which passes through the ceiling forconnection to a junction box 38. Surrounding the pipe 31 is a tube 39resting on the shoulder 36 and preferably polished on its outer surface.A cup-shaped member 40 is receivedon the tube 39 and fixed thereto by ascrew 4|, the upper edge of the cup being in contact with the ceiling.The wiring from the junction box 38, passes through the nine 31 and themember 23 to the sockets 33.

The lamps 34, as shown in the drawing, are

located directly above the mirrored plate ll and within the cylindricalmember [2. The light from said lamps are reflected upwardly by themirror I! to the ceiling. It will be noted that the only connectionbetween the plate I! and the ceiling, is at the center of the plate,hence eliminating shadows usually caused by connecting members disposedabove the lamps, as in lighting fixtures now in use.- The plate ll,being flat, reflects the light upwardly without any substantial lossover a wide area on the ceiling. The colored mirror Zil reflecting lightdownwardly enhances the lighting efiects produced by the lightingfixture. I have found that with my improved lighting fixture aparticularly soft and. pleasant light is produced for illuminating aroom. a

The plates H and 26 may be removed or replaced readily by merelyunscrewing the nut 28 which permits the stem 25 to be lifted out of theopenings l8 and 25. Should either of these plates break, replacing isgreatly facilitated. by reason of the engagement of said plates withopposite sides of the flange IS.

The mirror plate 20 reflects downwardly all the light rays impingingthereon. When the lamp I is illuminated, the light is reflected upwardlyby the mirror H. The rays of light are reflected to the various walls,the floor and furniture within the room which in turn reflect light tothe plate 20 and said plate reflects said reflected light downwardly.There are no direct rays from the lamps 34 to the plate 251, but thelight is reflected around the room and finally reaches the plate 29.Furthermore the plate 20 serves to cover the undersurface of the mirrorplate M. It will thus be seen that there is provided a device in whichthe several objects of this invention are achieved, and which is welladapted ,to meet. the conditions of practical use.

,herein set forth or shown in the accompanying drawing is to beinterpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new my desire to secureby Letters Patent:

1. A lighting fixture comprising a cylindrical member provided with aninwardly extending radial flange, a pair of glass disc reflectorscontacting opposite sides of said flange, said discs being formed withregistering central openings, a member having a threaded stern extendingthrough said openings, a nut screwed to said stem for clamping saiddiscs together, lamp sockets on said member and lamps in said sockets.

2. A lighting fixture comprising a cylindrical member made of sheetmetal, an annular bead having a groove receiving the upper edge of saidcylindrical member, an annular member of angle-shaped cross-section,fixed to the inner surface of said cylindrical member, adjacent thelower edge of the latter, and having an inwardly extending flange, apair of glass disc reflectors contacting opposite sides of said flange,means for clamping said plates together at the center, and lampssupported by said means above said discs.

.3. A lighting fixture comprising a cylindrical member made of sheetmetal, an annular bead having a groove receiving the upper edge of saidcylindrical member, an annular member of angle-shaped cross-section,fixed to the inner surfaceof said cylindrical member, adjacent the loweredge of thelatter, and having an inwardly extending flange, a pair ofglass disc reflectors contacting opposite sides of said flange, meansfor clamping said plates together at the center, said means comprising amember having a threaded stern extending through registering openings insaid discs, a nut on said stem, and lamps on said stem above saidreflectors.

4. A lighting fixture comprising a cylindrical member made of sheetmetal, an annular bead having a groove receiving the upper edge of saidcylindrical member, an annular member of angle-shaped cross-section,fixed to the inner surface of said cylindrical member, adjacent thelower edge of the latter, and having an inwardly extending flange, apair of glass disc reflectors contacting oppositev sides of said flange,means for clamping said plates together at the center, the adjacentsurfaces of said discs being mirrored to reflect lightin oppositedirections, and lamps supported by said clamping means above saidreflectors.

5. A lighting fixture comprising a cylindrical member made of sheetmetal, an annular bead having a groove receiving the upper edge of saidcylindrical member, an annular member of angle-shaped cross-section,fixed to the inner surface of said cylindrical member, adjacent thelower edge of the latter, and having an inwardly extending flange, apair of glass discs contacting opposite sides of said flange, and meansfor clamping said plates together at the center, one of said discs beingcolored and the other of said discs being mirrored.

6. A lighting fixture comprising a cylindrical member made of sheetmetal, an annular bead on said member comprising a wire having a radialgroove receiving the upper edge of said member, an annular member ofangular crosssection fixed to the inner surface of said first member,and having an inwardly extending flange, a pair of disc reflectorswithin said first member and on opposite sides of said flange, saiddiscs having registering central openings, a member having a threadedstem extending through said openings, a nut on said stem, lamp socketsonsaid member, lamps in said sockets, a pipe screwed to said member, and atube surrounding said pipe.

7. A lighting fixture comprising a cylindrical member made of sheetmetal, an annular bead on said member comprising a wire having a radialgroove receiving the upper edge of said member, an annular member ofangular crosssection fixed to the inner surface of said first member,and having an inwardly extending flange, a pair of discs within saidfirst member and onopposite sides of said flange, said discs havingregistering central openings, a member having a threaded stem extendingthrough said openings, a nut on said stem, lamp sockets on said lastmentioned member, a pipe screwed to said member, and. a tube surroundingsaid pipe, one of said discs being a flat mirrored glass plate and theother of said discs being colored glass.

LOUIS SILBERMAN.

